Taxon Details

Stipa diegoensis

San Diego County needle grass

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Taxon Summary:

Stipa diegoensis, commonly known as San Diego County needle grass, is a perennial herb in the Poaceae that is found in California and elsewhere. It occurs within Chaparral, and Coastal scrub, growing at elevations from 10 to 800 meters. Stipa diegoensis is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification

Scientific Name: Stipa diegoensis Swallen
Common Name: San Diego County needle grass
Family:	Poaceae
Element Code:	PMPOA5X0B0
USDA Plants Symbol:
Synonyms/Other Names: Achnatherum diegoense (Swallen) Barkworth
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S4
Other Status:	SB_CRES
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-06-08

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Feb-Jun

Elevation:
10 - 800 meters
35 - 2625 feet

General Habitats:

Chaparral
Coastal scrub

Microhabitat Details:

Microhabitat:

Mesic (often)
Rocky

Notes

Notes: See Madroño 33(4):309-310 (1986) for distributional information, and Phytologia 74(1):1-25 (1993) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Baja California (BA), California (CA)

California Counties and Islands: Name (Code)
San Diego (SDG), Santa Barbara (SBA), Ventura (VEN)

Quads: Name (Quad Code)
Alpine (3211677), Anacapa Island (3311983), Del Mar (3211782), Dulzura (3211667), El Cajon (3211678), Encinitas (3311713), Imperial Beach (3211751), Jamul Mountains (3211668), La Jolla (3211772), National City (3211761), Otay Mesa (3211658), Otay Mountain (3211657), San Miguel Island East (3312083), San Nicolas Island (3311924), San Vicente Reservoir (3211688), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Cruz Island D (3311984), Santa Rosa Island East (3311988), Santa Rosa Island North (3312081), Santa Rosa Island South (3312071), Santa Rosa Island West (3312082), Tecate (3211656)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory